Home / 4,625.60-6,939.84-1,338.80

Finding the Fourth Proportional to 4,625.60, 6,939.84 and 1,338.80

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Solution

The fourth proportional to 4,625.60, 6,939.84 and 1,338.80 is: 2,008.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,625.60 : 6,939.84 = 1,338.80 : x
  2. Step 2: Convert to fraction form
    4,625.60/6,939.84 = 1,338.80/x
  3. Step 3: Cross multiply
    4,625.60x = 6,939.84 × 1,338.80
  4. Step 4: Simplify right side
    4,625.60x = 9,291,057.79
  5. Step 5: Solve for x
    x = 9,291,057.79/4,625.60
  6. Step 6: Final answer
    x = 2,008.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.